Why is my HVAC not working on my Chevy Silverado?

Pull and reinsert the fuses for the HVAC before starting the truck. If this didn’t work for you try Step 2. If it seems like one side is stuck at one temperature only, it could mean the blend door actuator is no longer working. The actuator turns a door to switch between warm and cold air, but there are multiple actuators in your truck.

Where is the HVAC controller on a Chevy Silverado?

Remove the panel under the driver side’s dash board (For passenger actuator remove the panel under the glove box). The actuators are mounted near the HVAC controller. Pry off the electrical harness plugged into the actuator. Unscrew the mounting screws and remove the actuator. Install your new actuator and tighten it down with the mounting screws.

Why is the blend door on my Chevy Silverado not working?

If it seems like one side is stuck at one temperature only, it could mean the blend door actuator is no longer working. The actuator turns a door to switch between warm and cold air, but there are multiple actuators in your truck. To figure out which one isn’t working shut off the truck and turn the fans off.

Why are the brakes soft on my Chevy Silverado?

Air trapped in the lines, calipers or wheel cylinders will make the pedal feel soft and spongy. Air is compressible, so when the brakes are applied any air bubbles in the system must first be compressed before the hydraulic fluid will transmit pressure to apply the brakes.

Where are the HVAC fuses in a Chevy Silverado?

Turn the ignition off. Find the three HVAC fuses; Two are under the hood and one is in the cab fuse box. Turn the AC and heater switches to the off position, and turn the temperature controls to the coldest setting. Set the HVAC to automatic. Plug in the fuses. Start the engine and let it run for five minutes.

How do you change the HVAC in a Chevy Silverado?

Lower the steering wheel and pry off the paneling around the driver’s side dash, the HVAC controller and the radio. Unscrew the bolts on either side of the HVAC controller, push in the clips, and then pull it out. Disconnect the electrical harnesses. Connect the new HVAC controller and slide it into the housing.

Why does my blower fan on my car not work?

BLOWER MOTOR FAN DOES NOT WORK If playback doesn’t begin shortly, try restarting your device. Videos you watch may be added to the TV’s watch history and influence TV recommendations. To avoid this, cancel and sign in to YouTube on your computer. An error occurred while retrieving sharing information.

Why does my GMC k1500 blower not work?

Here is a possible solution for your 1995 GMC K1500 blower that wont work on high. First remove the glove box and set it aside. Now look into the area that the glove box resided. You will see a wire harness covered in factory foam and next to this on the right you will see a flat silver box that is your ECM.

What to do if your Chevy Silverado doesn’t have an AC?

Whether it’s hot or cold, you expect your Chevrolet Silverado’s AC or heater to take care of you. But what to do if it doesn’t? This article applies to the Chevrolet Silverado 1500 (2014-Present). It’s a hot summer day, you reach over to the dash knob and you crank on your AC.

Why does my GMC heater not work on high?

1997 GMC C1500 Heater/AC blower will not work on HIGH. I have replaced the black BOSCH relay behind the glovebox, the blower RESISTOR and the blower MOTOR and still cannot get the blower to work on HIGH. I remember in older model years of GMC’s and Chevys that their was a high speed blower relay that caused this issue.

What should I do if my radiator fan is not working?

A blown fuse is no big deal, and changing one does not cost a lot of money. If your car’s radiator fan is non-functional, check your car’s user manual and locate the fuse for the radiator fan controller or the fan. The fan itself often uses a big fuse of around 50A, while there might also be a separate small fuse to the fan control module.

What’s the outside temperature of a Chevy Silverado?

This 2009 Chevrolet Silverado came in with the complaint that the a/c was blowing out hot air on the driver’s side of the dash. The vent temperature was 140°F and the outside air temperature was 97°F in August in sunny South Carolina. I told the customer that I would not be able to get to it until the next day.

How much does a Chevy Silverado AC cost?

This can result in incorrect air delivery or temperature. If this occurs, fault code (s) stored in the HVAC control module should be available to assist with diagnoses. The average cost for a Chevrolet Silverado 1500 AC Diagnosis is between $53 -$67. Learn More

Why is my Chevy Silverado 2500 HD blowing hot air?

When the air conditioner in your 2005 Chevrolet Silverado 2500 HD starts blowing hot air, you likely have a freon leak. Recharging the freon in your AC system is an inexpensive and easy first step to restoring the cooling capacity of your A/C system.

What to do about HVAC issues on a Chevy Silverado?

If you’ve noticed the control issues happening after disconnecting the battery or having repair work done, then the quickest fix is to recalibrate the HVAC. Turn the ignition off. Find the three HVAC fuses; Two are under the hood and one is in the cab fuse box.

What does the Chevy Silverado climate control system do?

The Chevy Silverado climate control system uses several different components that come together to either cool down or heat up the cabin. When one or more of these components fails, the heat or cold air capabilities go along with it. Read this article to find out three common causes for temperature lost on your Silverado 1500.

How do you get air out of a Chevy Silverado?

In these cases, a coolant back flush is required to remove the air from the heating system. Locate the hoses that enter the heater core. Disconnect them to release any trapped air. Reconnect the lines. Top off the coolant. Flgure 3. Flush the heater system. This procedure refers to a quick release of air from the system.

Why does my a / C quit working on my Chevy Express?

Plug it in to the side on the low pressure switch and no power. Using a tester that you can stick into the wire to check if it has power. There is no power when I plug it in, unplug and the power returns. Did it several time and each the power would leave. Not like it blows a fuse, nope it just goes away like a fuse was blown.

Why does my GM Truck AC keep blowing out?

The 1995 and earlier have a different circuit board layout, the transistor numbers and concept should still apply but the the locations shown in the video will be different. If you find that the transistor keeps blowing out after replacement, then its because of too much current passing thru due to a short to ground in the circuit.

What was the a / C problem on my 1998 Silverado?

One day last year, I started my 1998 C-1500 350 2WD, and surprise – the a/c blew hot air. I said a bad word. I only use the truck to go to the lumber yard, so I just let it be – until today, when it was 98F and I got stuck in a 10-mile traffic jam (I said many bad words).

Why is my C-1500 AC not working?

If it’s low enough, the compressor will not even kick in. Just a thought before you start tearing things apart. Thanks. I only have an old R-12 gauge set, so I can’t actually test the refrigerant level.

How to fix Chevy GMC Truck heater blend door?

1999 – 2004? Chevy GMC Truck Heater Blend Door Stuck Easy Fix How-to – YouTube If playback doesn’t begin shortly, try restarting your device. Videos you watch may be added to the TV’s watch history and influence TV recommendations. To avoid this, cancel and sign in to YouTube on your computer. An error occurred while retrieving sharing information.

Why is the AC not working on my Chevy Silverado?

Learn if it’s a simple fix or time to seek out a trusted technician. Not your vehicle? Why Isn’t My A/C Working? What are common reasons my Chevrolet Silverado 1500 has air conditioning problems?

How to test a Chevy Silverado HVAC system?

Plug in the electrical harness. Now set the fan and heater controls to off and the temperature controls to the coldest setting. Reconnect the battery, turn the key and listen for the actuator to click. Wait five minutes then test the controls to see if it worked.

Why does my Chevy Silverado blow hot air on one side?

This article applies to the Chevrolet Silverado (1999-Present). Does your Silverado blow hot air on one side and cold air on the other? If you have dual zone controls you may have run into this problem before. There is a way to fix this if you’re patient and willing to troubleshoot your way through it.

Why is the refrigerant gas not working on my Chevy Silverado?

In addition to the normal loss, component defects are usually responsible for the escape of the refrigerant gas on Chevy Silverado 1500. A defective sealing ring, a worn line or a condenser that has been damaged by a stone chip are the most common causes. Finding these mostly very small leaks is often not easy.

What happens if you have a bad blower motor?

The blower motor is the component responsible for pushing air through the vents of your vehicle’s heating and air conditioning systems. Without it, the AC system will not be able to circulate any heated or cooled air.

What causes a fuse to blow on a blower motor?

If the blower motor relay develops any sort of problem that hinders its ability to properly limit and distribute power, it may cause the blower motor fuse to blow. Any sort of electrical spikes or excessive current from a bad relay will blow the fuse and cut power in order to protect the system.

Why does my car AC blow cold air then blow warm air?

But that cold air turns warm fairly soon after because the high side pressures build to the point that the high pressure switch shuts off the compressor clutch. Once pressures equalize, the high pressure switch allows the compressor to start up again. The cycle repeats over and over, providing a short period of cold air, followed by warm air.

Why does my blower not come on when I start my truck?

Since then, every once in a while I notice that the fan doesn’t come on when I start the truck, or if it does it’s very weak, so I crank it to max, the fan blows noticeably, then I turn it down to a more reasonable setting.

Why does my GMC air conditioner stop working?

For about 5 miles the A/C worked normally till we hit a R/R and the bump made it stop blowing cold air and he was finally convinced. Back to the shop and 30 min later they found the problem. Turned out to be the low pressure switch, (under hood on bottom of small tank) it was corroded and causing a loss of electrical contact.

Why is my Silverado Sierra blowing cold air?

After fiddling with the controls a bit I gave up and rolled the windows down. About five minutes later it was eating at me so I switched the control from off to max and the fan kicked on like it was supposed to and was blowing cold air.

Why is my HVAC not working on my Chevy Silverado?